CN101837523B - Titanium reinforced wear-resistance submerged overlaying flux-cored wire - Google Patents
Titanium reinforced wear-resistance submerged overlaying flux-cored wire Download PDFInfo
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- CN101837523B CN101837523B CN2010101974277A CN201010197427A CN101837523B CN 101837523 B CN101837523 B CN 101837523B CN 2010101974277 A CN2010101974277 A CN 2010101974277A CN 201010197427 A CN201010197427 A CN 201010197427A CN 101837523 B CN101837523 B CN 101837523B
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Abstract
The invention discloses a titanium reinforced wear-resistance submerged overlaying flux-cored wire, comprising a mild steel cored solder wire and a powder flux core in the cored solder wire. The powder flux core is characterized by comprising the following components in percentage by weight: 30 to 55 percent of high-carbon ferrochrome, 10 to 25 percent of ferrotitanium, and 25 to 55 percent of iron powder. An overlaying welding layer using the flux-cored wire has the characteristics of uniform hardness distribution, high wear resistance and the like, and has excellent welding technical performance.
Description
Technical field
The present invention relates to a kind of titanium reinforced wear-resistance submerged overlaying flux-cored wire, belong to technical field of welding materials.Background technology
Flux-cored wire is that alloying element (powder medicine core) is wrapped in sheetmetal to the flux-cored wire formed through being drawn into different-diameter.
Flux-cored wire, after welding fusing, forms the alloy solder layer with the property such as wear-resistant, corrosion-resistant and high temperature resistant.Flux-cored wire submerged-arc welding occupies an important position in reparation and composite manufacturing, is widely used in the compound position of the mechanical structured members such as high wear resistance of mechanical engineering structure.
The wear-resisting welding wire with flux core that built-up welding is at present repaired, generally all contain the alloying elements such as carbon, chromium, silicon, manganese, seldom or hardly contains carbide.
It is generally acknowledged that reinforcing material surface strength and improve the effective way of wearability is to provide case hardness and the obdurability of material.The particle that comparatively desirable layer institutional framework is equally distributed high-melting-point on tough and tensile, continuous matrix, high rigidity, good stability.The wearability of built-up welding layer is mainly determined by kind, distribution and the Area Ratio of carbide.Contained chromium in wear-resisting powder medicine core forms double carbide (Cr, Fe) with carbon and iron in weld deposit process
7c
3the hexagonal prism structure, its case hardness is HV1200～1800, the hardness ratio front surface of side is slightly low.As can be seen here, the existing flux-cored wire of repairing for built-up welding, far can not meet the roll of steel plant, the demand that the composite manufacturing of the coal-grinding roller of firepower electrical plant and engineering excavation machinery etc. and maintenance are reproduced etc.
Summary of the invention
The present invention is intended in powder medicine core, by adding titanium elements, and titanium can be got rid of the oxygen in molten bath in weld deposit process, can in the built-up welding molten pool metal, with carbon, be combined again, form the core of the non-spontaneous nucleation of titanium carbide, and remarkable crystal grain thinning, and, because titanium carbide can separately exist in hardfacing alloy, play the effect of wear-resisting particle, wearability is further improved, and a kind of flux-cored wire of titanium reinforced wear-resistance submerged overlaying is provided.
The present invention realizes that the technical scheme of its purpose is:
A kind of titanium reinforced wear-resistance submerged overlaying flux-cored wire, comprise the mild steel cored solder wire and be located at the powder medicine core in described cored solder wire; The filling rate of described powder medicine core in described cored solder wire is in 30～50% scopes, and its innovative point is:
The weight proportion of described powder medicine core is:
High carbon ferro-chrome 30～55%;
Ferrotianium 10～25%;
Iron powder 25～55%.
In above-mentioned powder medicine core, the Main Function of each component is:
High carbon ferro-chrome: its composition is 62.0～72.0%Cr ,≤6.0%C, and remaining is Fe.By it to transition alloy elements in hardfacing alloy.
Ferrotianium: its composition is 25.0～35.0%Ti, and remaining is Fe.Described ferrotianium is deoxidier and carbide former.Preferentially be combined with carbon and form titanium carbide hard, wear-resistant phase in the built-up welding layer by it.
Iron powder: to hardfacing alloy, supplement alloying element.
The filling rate of above-mentioned powder medicine core in cored solder wire can, according to actual operation requirements and operating mode, be adjusted between 30%～50%.
Describe and can understand by above given technical scheme and the effect of each component of powder medicine core, the present invention is in its powder medicine core, existence due to the titanium element, and can be in weld deposit process fully deoxidation, can in built-up welding high temperature molten bath, with carbon, fully react again and generate the TiC hard phase, and described TiC can even dispersion be distributed in hardfacing alloy, thereby when crystal grain thinning improves obdurability, improve the hardness of overlay cladding, strengthened anti-wear performance, realized purpose of the present invention.
In technique scheme, the present invention advocates that described mild steel cored solder wire is the H08A steelwork, or the H10 steelwork.But be not limited to this.Result of the test shows, phosphorus content is at the mild steel product below 0.2%, all can be used for preparing cored solder wire of the present invention.
After technique scheme is implemented, its result on trial shows: flux-cored wire welding technological properties of the present invention is good, the overlay cladding case hardness is evenly distributed, average hardness is in HRC42～65 scopes, the 10-30 that wearability is the Q235 carbon steel doubly, and there is the strong and alloying uniformity coefficient advantages of higher of anti-pore ability, realized original intention of the present invention.
The accompanying drawing explanation
Fig. 1 is preparation technology's flow chart of a kind of specific embodiment of the present invention.
The specific embodiment
Below contrast accompanying drawing, by the description of the specific embodiment, the invention will be further described.
One of specific embodiment, as shown in Figure 1.
A kind of titanium strengthening submerged-arc overlaying welding flux-cored wire comprises H08A mild steel cored solder wire and is located at the powder medicine core in described cored solder wire that the weight proportion of described powder medicine core is: described high carbon ferro-chrome 37%, described ferrotianium 12%, iron powder 51%.Filling rate 34%.Flux-cored wire overlay cladding average hardness HRC49.
Two of the specific embodiment, as shown in Figure 1.
A kind of titanium strengthening submerged-arc overlaying welding flux-cored wire comprises H10 mild steel cored solder wire and is located at the powder medicine core in described cored solder wire that the weight proportion of described powder medicine core is: described high carbon ferro-chrome 47%, described ferrotianium 20%, iron powder 33%.Filling rate is 46%.Flux-cored wire overlay cladding average hardness HRC60.
By above-mentioned two examples, can be understood, effect of the present invention is very good.
Claims (2)
1. a titanium reinforced wear-resistance submerged overlaying flux-cored wire, comprise the mild steel cored solder wire and be located at the powder medicine core in described cored solder wire; The filling rate of described powder medicine core in described cored solder wire, in 30～50% scopes, is characterized in that:
The weight proportion of a, described powder medicine core is:
High carbon ferro-chrome 30～55%;
Ferrotianium 10～25%;
Iron powder 25～55%.
2. titanium reinforced wear-resistance submerged overlaying flux-cored wire according to claim 1, is characterized in that, described mild steel cored solder wire is the H08A steelwork, or the H10 steelwork.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101974277A CN101837523B (en) | 2010-06-11 | 2010-06-11 | Titanium reinforced wear-resistance submerged overlaying flux-cored wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101974277A CN101837523B (en) | 2010-06-11 | 2010-06-11 | Titanium reinforced wear-resistance submerged overlaying flux-cored wire |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101837523A CN101837523A (en) | 2010-09-22 |
| CN101837523B true CN101837523B (en) | 2013-12-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010101974277A Expired - Fee Related CN101837523B (en) | 2010-06-11 | 2010-06-11 | Titanium reinforced wear-resistance submerged overlaying flux-cored wire |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106238964B (en) * | 2016-07-28 | 2018-07-27 | 江苏科技大学 | A kind of titanium is modified high-chromium cast iron-type self protection pile-up welding flux core welding wire and preparation method thereof |
| CN112404672B (en) * | 2020-11-13 | 2021-12-17 | 湘潭大学 | Composite powder particles of titanium carbide phase reinforced iron-based surfacing alloy and application method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1260260A (en) * | 2000-02-28 | 2000-07-19 | 贾世文 | Cored welding wire of super-wear-resistant for submerged are build-up welding |
| CN1520956A (en) * | 2003-02-15 | 2004-08-18 | 北京中煤矿山工程有限公司 | Wear resistant build-up welding flux-cored wire |
| CN101224527A (en) * | 2008-02-04 | 2008-07-23 | 湘潭大学 | High hardness ferritic stainless steel wearable surfacing flux-cored wire |
| CN101829861A (en) * | 2010-05-14 | 2010-09-15 | 河海大学常州校区 | Submerged arc hardfacing flux-cored wire with high crack resistance |
-
2010
- 2010-06-11 CN CN2010101974277A patent/CN101837523B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1260260A (en) * | 2000-02-28 | 2000-07-19 | 贾世文 | Cored welding wire of super-wear-resistant for submerged are build-up welding |
| CN1520956A (en) * | 2003-02-15 | 2004-08-18 | 北京中煤矿山工程有限公司 | Wear resistant build-up welding flux-cored wire |
| CN101224527A (en) * | 2008-02-04 | 2008-07-23 | 湘潭大学 | High hardness ferritic stainless steel wearable surfacing flux-cored wire |
| CN101829861A (en) * | 2010-05-14 | 2010-09-15 | 河海大学常州校区 | Submerged arc hardfacing flux-cored wire with high crack resistance |
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| CN101837523A (en) | 2010-09-22 |
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Granted publication date: 20131211 Termination date: 20160611 |